亚磷酸氢钙高温热分解特性研究  

The Pyrolysis Characteristics of Calcium Hydrogen Phosphite

作　　者：毕成良[1] 闫丽娟[1] 唐雪娇[1] 高敏[1] 张宝贵[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《南开大学学报（自然科学版）》2008年第5期103-106,共4页Acta Scientiarum Naturalium Universitatis Nankaiensis

摘　　要：采用热重分析和X-射线衍射分析研究亚磷酸氢钙的高温热分解性质,并分析了亚磷酸氢钙在不同温度下的分解产物组成.亚磷酸氢钙在400℃时开始分解,700℃后产物虽继续吸热,但只发生相变,分解产物主要为磷酸三钙和焦磷酸钙,研究结果可为工业生产次磷酸钠废渣的资源化处理提供理论依据,同时对亚磷酸氢钙的应用具有重要的参考价值.The pyrolysis characteristics of calcium hydrogen phophite were measured by X- ray diffraction apparatus and thermal analysis method in this paper. Productions which pyrolyzed in different temperature of calcium hydrogen phosphite were analyzed. Calcium hydrogen phophite was beginning to decompose at 400℃, though the products went on absorbing heat after 700℃, only phase was changed, the products were mainly calcium phosphate and calcium pyrophosphate. The research results can be accord as theoretic for dealing with waste residue of industrial producing sodium hypophosphite and will provide reference for application of calcium hydrogen phosphite.

关 键 词：亚磷酸氢钙 热分析 X-射线衍射 热分解 

分 类 号：O611.3[理学—无机化学]